33157722127 has 2 divisors, whose sum is σ = 33157722128. Its totient is φ = 33157722126.

The previous prime is 33157722053. The next prime is 33157722133. The reversal of 33157722127 is 72122775133.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33157722127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33157722127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33157722167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16578861063 + 16578861064.

It is an arithmetic number, because the mean of its divisors is an integer number (16578861064).

Almost surely, 2^33157722127 is an apocalyptic number.

33157722127 is a deficient number, since it is larger than the sum of its proper divisors (1).

33157722127 is an equidigital number, since it uses as much as digits as its factorization.

33157722127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 123480, while the sum is 40.

The spelling of 33157722127 in words is "thirty-three billion, one hundred fifty-seven million, seven hundred twenty-two thousand, one hundred twenty-seven".